25_Earth Limitations - Population explosion Malthus,...

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Unformatted text preview: Population explosion Malthus, economics, demographics Renewable resources food, lumber, water exceptions Non-renewable resources sporadic distribution, exhaustibility metals fossil fuels A geologists viewpoint Finish the book Do you have a scheduling conflict on Thursday December 9 th , 7-10 PM (the day of the GEO 303 final exam)? If so, write an email message to Dr. Long or Dr. Ketcham to arrange to take the exam Friday evening. Population explosion Malthus, economics, demographics Renewable resources food, lumber, water exceptions Non-renewable resources sporadic distribution, exhaustibility metals fossil fuels A geologists viewpoint Finish the book December 24, 1968 When Apollo 8 looked back on the Earth, it provided a fresh perspective on the planet we live on. Population growth 1000 2000 3000 4000 5000 6000 7000-10000-8000-6000-4000-2000 2000 Year World population (millions) Population growth 1000 2000 3000 4000 5000 6000 7000 500 1000 1500 2000 Year World population (millions) Improvements in science and technology have prompted an explosive growth in population. Cataclysmic events like the Great Plague (~1350) and Little Ice Age (~1650) are apparent, but since then technology has, for now, shielded us. China and India are the two most populous countries, by far. The United States is the third most populous, followed by Indonesia and Brazil Data from World Bank Data from World Bank Population growth is mostly centered in the poorer regions of the world. The population is actually shrinking in Russia and parts of Europe. http://soils.usda.gov/ A population diagram for technological, industrialized Western nations shows lifetime expectancies well into the 60s, 70s, and 80s....
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25_Earth Limitations - Population explosion Malthus,...

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